Quick reminder that if you have german ancestors that had to flee the nazis, you can claim their citizenship back. Once you got the german passport the whole EU allows you to be a resident.

Probably?

https://relocate.me/blog/relocation-advice/moving-to-europe-steps/

as a fellow american stuck here until i hit the lotto - best we can do is an occasional debt filled trip to the hospital.

Spain has massively increased it's population. Even though the birthrate is below replacement level. All of that is immigration.

You can move to basically anywhere. Most countries offer legal immigration paths. Some are of course harder than others, but it's possible.

Especially if you are highly skilled. Such as a medical doctor.

Countries love already educated professionals, since they basically get all the benefit of a fully working adult without the downside of paying for its childcare or education.

And even if low educated, most first world countries want low educated foreigners that can do the "dirty" physical work that the locals don't want to do, such as construction.